Investments (Schedule Of Changes In Equity Investments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Debt and Equity Investments [Roll Forward]
Balance at the beginning of the period			$ 69,240	$ 44,142
Net additions (reductions) to investments			5,713	20,038
Observable price adjustments on non-marketable equity securities			5,367	1,000
Unrealized gains (losses) on marketable equity securities			(9,666)	8,442
Realized gains on marketable and non-marketable equity securities			3,981
Reclassifications				0
Impairment of investments			(209)
Loss attributable to equity method investments	$ (2,627)	$ (4,969)	(5,927)	(9,895)
Carrying value at the end of the period	68,499	63,727	68,499	63,727
Non-marketable securities
Debt and Equity Investments [Roll Forward]
Balance at the beginning of the period			23,002	30,033
Net additions (reductions) to investments			7,665	2,538
Observable price adjustments on non-marketable equity securities			5,367	1,000
Unrealized gains (losses) on marketable equity securities			0	0
Realized gains on marketable and non-marketable equity securities			2,355
Reclassifications				(10,569)
Impairment of investments			(209)
Loss attributable to equity method investments			0	0
Carrying value at the end of the period	38,180	23,002	38,180	23,002
Marketable securities
Debt and Equity Investments [Roll Forward]
Balance at the beginning of the period			29,084	0
Net additions (reductions) to investments			(3,202)	5,000
Observable price adjustments on non-marketable equity securities			0	0
Unrealized gains (losses) on marketable equity securities			(9,666)	8,442
Realized gains on marketable and non-marketable equity securities			1,626
Reclassifications				10,569
Impairment of investments			0
Loss attributable to equity method investments			0	0
Carrying value at the end of the period	17,842	24,011	17,842	24,011
Equity method investments
Debt and Equity Investments [Roll Forward]
Balance at the beginning of the period			17,154	14,109
Net additions (reductions) to investments			1,250	12,500
Observable price adjustments on non-marketable equity securities			0	0
Unrealized gains (losses) on marketable equity securities			0	0
Realized gains on marketable and non-marketable equity securities			0
Reclassifications				0
Impairment of investments			0
Loss attributable to equity method investments			(5,927)	(9,895)
Carrying value at the end of the period	$ 12,477	$ 16,714	$ 12,477	$ 16,714